William s



W. s. HADAW'AY & B GOTT'. Leather-Skiving Machine.

Patented l uly8, 1879.

H.FETERS, PHOTO LITHOGRA EZI WZZ OTJ WA 12 5M (mm-1 Erwfim @ofg PHER, WASHINGTON. D C.

WILLIAM s. nnp wny, QF QHILTQNVILLE, AND EBASTUS GOTT, or nosron, MAssAonUsET'rs.

i r q fi eti n a aoyria i a vPe t re Jest r Perm Na 13 2w fil w Ji-i i 7 r li rt e file? To a w mmay mm: 11 Be it known that we, WILLIAM S. Harm- WAY,,ofQhiltonville,county,of Plymouth, and 1 E r Is G T, Bo ton, tenets e Si fifelk,

vented certain useful Improv cuts 1 Sk ies Mae ie of hiel th j'folib i gii i a e tical .cross-seetio of a machine embody mg our invention. In these drawings, A represents the frame of the machine as composed of a,tlat base," B,

and two curved standards ,or goose-necks, U

C, springing from the rear end of the base B, 7

the vertical portion or base of support of each goose-neck being shown at D and its horizontal portion or arm at E. Upon the inner side of each arm E, I dispose a horizontal bar or carrier, F or F, these carrier-bars being pivoted at their rear ends to the goose-necks by a common horizontal pivot, G, in such manner as to be susceptible of slight swinging motion thereupon with respect to the base B.

The knife for shaving or skiving the leather is shown at H as an endless band of thin steel, and is supported by and caused to travel with two or more vertical pulleys or guide-rollers, I J, disposed in line with each other midway of the carrier-bars F, the rear and stationary pulley, J, being mounted upon the pivot before alluded to, while the front and adjustable pulley, I, which we term the tension-pulley, is mounted upon a horizontal pivot, K, supported at each end in a box, a, sliding in a slot, 1), created in the forward end of each bar or carrier, the said boxes at a being movable longitudinally of the goose -necks, and being adjusted each by a screw, b, swiveled to the goose-neck, and screwing into the end of the box. By this method of mounting the front pulley or guide-roll the tension of the endless knife is regulated.

As the leather in being shaved by the knife passes between the latter and the bed or table B, it is essential not only that the slope of the knife longitudinally of the bed may be varied to determine the slope of the scarf cut by man h sra t Massaau as, e 1

it u t i ls tha th 1 anq be we n t kn f a d hai ,lus f l l i I f9? .9 l H l Rd S "shou sw ete requ r 1 ha th se resi lts by'br na ne a i 'iiiae'har to th ir. :1; P dards O G, and to "securely'hol o hqlt ein 1 d as -t-h teueh sl t it a,

aid standarmthe heads of ,t

' rfering fe'"H,as tlie bars F F, which support the tension-pulley, swing upon the'same pivot as the rear pulley, J.

To feed the leather or stock below the knife and at right angles to the path of movement of such knife we employ a roughened feedwheel, f, screwed upon the front end of a horizontal shaft, g, disposed below and parallel with the rear pulley, J, and practically in alignment with the longest plane of the knife H, such shaft being supported and revolving in standards h i, erected upon the base B, and driven by a bevel-gear, j, affixed to its rear end, which engages and is in turn driven by a second bevel-gear, is, affixed to the inner end of a short horizontal shaft, 1, which is mounted in the upper part of a standard, m, erected upon the rear end of the said base B and inrear of the pulley J, this latter shaft I carry ing a pulley, a, about which and a second pul ley, 0, affixed to the side of the said pulley J, an endless belt, 12, travels and puts the said pulley n, and through it the shaft 1 and feedwheel f, in rotation.

The shaft 9 passes through a slot in the standard h, and is depressed by a spring placed over it, in order to permit of a yielding vertical movement of the front end of theshaft and wheel, to adapt the latter to the inequalities of varying thickness in the stock.

The wheel f bears upon the edge of the stock and pushes the latter forward beneath the knife, which is in motion consequently the latter shaves or skivcs the edge of such stock in rear of the feed-wheel. A suitable gage to follow the feed-wheel should be secured upon the front of the shaft. If the stock is to be left thick the feed-wheel and gage should be moved to the left upon the shaft, and vice To prevent springing of the knife immediately about its point of contact with the stock we employ a roller, q, bearing upon the top of the knife and mounted upon a journal, 1", making part of a post, .9, secured to or erected upon the base B in rear of the knife, and if deemed desirable a second roller may be employed, disposed below the first, and bearing upon the under side of the knife.

We claim 1. The endless-band knife and its supporting pulleys, arranged substantially as described, whereby the front pulley is adjustable with respect to the bed of the machine to vary the angle or slope of the cut effected by the knife.

2. The combination of the endless knife, the two supporting-pulleys, and the swinging bars with the standards, substantially as set forth, whereby, by varying the altitude of the free ends of said bars, the slope or angle of the knife and the bevel of the scarf cut by it are varied without interfering with the tension of the knife.

- 3. The combination of the pulley-supporting bars and the curved standards or goosenecks, substantially as explained, whereby the bars are adjustable within or upon the standards to vary the slope of the knife with respect to the bed, and the bearings of the tension-pulley are movable within the bars to adjust the tension of the knife.

4. The combination of the pulleys I J and their supporting-bars with the standards 0 G, essentially as stated, whereby the tensionpulley I may be raised or lowered to govern the bevel of the scarf without changing the tension of the knife.

5. The combination, with the knife-carrying pulleys, the endless knife, and the bed B, of the feed-wheel operating to feed the stock beneath the knife, substantially as explained.

6. The combination of the endless knife, the

feed-wheel, and the guide-roll q, substantially as stated.

7. The guide-roll q, in combination with the endless knife and its supporting-pulleys and the swinging bars F F, essentially as and for the purposes stated.

8. In combination, the knife H, pulleys I J, swinging bars F F, curved standards 0 G, feedwheel f, and guide-roll q with the bed B, arranged and operating substantially as described.

WILLIAM S. HADAWAY. ERASTUS GOTT. Witnesses:

F. CURTIS, H. E. LODGE. 

